New York, U.S., State Census, 1875

Validator (claude-sonnet-5-5, 2026-10-28): supports, confidence 3/4, tier record.
On the right-hand page, the Cyrus Clark household in Richland, Oswego County, includes Sarah Bentley, about 67, listed as mother-in-law of the head. Her age gives a birth year of about 1808, and the place and year match the residence claim. The handwriting is hard to read, but the details agree with the claim.
Matches: The image is the 1875 NY State census for the Town of Richland, Oswego County, 1st Election District, which matches the claimed place and year; Line 39 in the Cyrus Clark household (dwelling/family about 175/183) reads "Sarah Bentley", age about 67, female; An age of 67 in 1875 implies a birth year of about 1808, which matches Sarah Bentley (1808–1886); The relation column appears to read "Mother-in-law" to the head, Cyrus Clark, whose wife is Sarah (31). This fits the claim's note; The next line, Ann E. Bentley (33), appears to be a sister-in-law, which fits a Bentley mother with her daughters in the household
Limits: The handwriting is small and the scan is low resolution, so the relation entry and exact age are read with some uncertainty; The census shows residence on the enumeration date only, and says nothing about her dates of birth or death; The record does not link this Sarah Bentley to the 1808–1886 person beyond name, age and household context